Reviewed by Yury Semikhatsky.

        Web Inspector: place local modifications to under original
        resource nodes in the resource panel.
        https://bugs.webkit.org/show_bug.cgi?id=50029

        * English.lproj/localizedStrings.js:
        * inspector/Inspector.idl:
        * inspector/InspectorController.cpp:
        (WebCore::InspectorController::resourceRetrievedByXMLHttpRequest):
        (WebCore::InspectorController::scriptImported):
        * inspector/InspectorResourceAgent.cpp:
        (WebCore::InspectorResourceAgent::setInitialContent):
        * inspector/InspectorResourceAgent.h:
        * inspector/front-end/CSSStyleModel.js:
        (WebInspector.CSSStyleModel.prototype.setRuleSelector):
        (WebInspector.CSSStyleModel.prototype.addRule):
        (WebInspector.CSSStyleModel.prototype._styleSheetChanged.callback):
        (WebInspector.CSSStyleModel.prototype._styleSheetChanged):
        (WebInspector.CSSStyleDeclaration.prototype.insertPropertyAt):
        (WebInspector.CSSProperty.prototype.setText):
        (WebInspector.CSSProperty.prototype.setDisabled.callback):
        (WebInspector.CSSProperty.prototype.setDisabled):
        (WebInspector.CSSStyleSheet.prototype.setText):
        * inspector/front-end/NetworkPanel.js:
        (WebInspector.NetworkPanel.prototype.refreshResource):
        * inspector/front-end/Resource.js:
        (WebInspector.Resource.prototype.set content):
        (WebInspector.Resource.prototype.get contentTimestamp):
        (WebInspector.Resource.prototype.setInitialContent):
        * inspector/front-end/ResourceManager.js:
        (WebInspector.ResourceManager):
        (WebInspector.ResourceManager.prototype.setInitialContent):
        * inspector/front-end/ResourcesPanel.js:
        (WebInspector.ResourcesPanel):
        (WebInspector.ResourcesPanel.prototype.reset):
        (WebInspector.ResourcesPanel.prototype._innerShowView):
        (WebInspector.FrameResourceTreeElement):
        (WebInspector.FrameResourceTreeElement.prototype._errorsWarningsUpdated):
        (WebInspector.FrameResourceTreeElement.prototype._contentChanged.else.finished):
        (WebInspector.FrameResourceTreeElement.prototype._contentChanged):
        (WebInspector.ResourceRevisionTreeElement):
        * inspector/front-end/SourceFrame.js:
        (WebInspector.SourceFrame.prototype.get scrollTop):
        (WebInspector.SourceFrame.prototype.set scrollTop):
        * inspector/front-end/SourceView.js:
        (WebInspector.SourceView.prototype.get scrollTop):
        (WebInspector.SourceView.prototype.set scrollTop):
        (WebInspector.SourceView.prototype._editLine):
        (WebInspector.SourceView.prototype._editLineComplete):
        * inspector/front-end/StylesSidebarPane.js:
        (WebInspector.StylePropertyTreeElement.prototype):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@72684 268f45cc-cd09-0410-ab3c-d52691b4dbfc